Tummala Electronics Pvt. Ltd. Manufactures 2 Wire Control Telephone with Operating Voltage 3 to 12 Volts DC. Tummala Electronics Pvt. Ltd. Offers Railway Communication Equipment, Solar Water Heaters and Solar Powered Lighting Systems. The 2 Wire Control Telephone with Operating Voltage 3 to 12 Volts DC is used for providing communication between the Station Master at a way side station and the Train Traffic Controller at a Divisional Office. This telephone works on 2 Wire overhead alignment communication line with a 3 - 12V battery supply.
The 2 Wire Control Telephone with Operating Voltage 3 to 12 Volts DC is housed in an aesthetic ABS plastic cabinet and employs dynamic transducers for the transmitter and receiver capsules for speech clarity and long life. The send and receive efficiencies have been enhanced to a great extent to provide good audibility over long distances. The insertion loss is held very low to facilitate connection of several telephones in parallel along the way stations.
